Definitions

Mineral Resource

The term “Mineral Resource” means a concentration or occurrence of diamonds, natural solid inorganic material or natural solid fossilized organic material including base and precious metals, coal, and industrial minerals in or on the Earth’s crust in such form and quantity and of such grade or quality that it has reasonable prospects for economic extraction. The location, quantity, grade, geological characteristics and continuity of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge. Mineral Resources are subdivided, in order of increasing geological confidence, into Inferred, Indicated and Measured categories.

Inferred Mineral Resource

The term “Inferred Mineral Resource” means that part of a Mineral Resource for which quantity and grade or quality can be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity. The estimate is based on limited information and sampling gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes.

Indicated Mineral Resource

The term “Indicated Mineral Resource” means that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics, can be estimated with a level of confidence sufficient to allow the appropriate application of technical and economic parameters, to support mine planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough for geological and grade continuity to be reasonably assumed.

Measured Mineral Resource

The term “Measured Mineral Resource” means that part of a Mineral Resource for which quantity, grade or quality, densities, shape, and physical characteristics are so well established that they can be estimated with confidence sufficient to allow the appropriate application of technical and economic parameters, to support production planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm both geological and grade continuity.

Mineral Reserve

The term “Mineral Reserve” means the economically mineable part of a Measured or Indicated Mineral Resource demonstrated by at least a Preliminary Feasibility Study. This study must include adequate information on mining, processing, metallurgical, economic and other relevant factors that demonstrate, at the time of reporting, that economic extraction can be justified. A Mineral Reserve includes diluting materials and allowances for losses that may occur when the material is mined.

Probable Mineral Reserve

The term “Probable Mineral Reserve” means the economically mineable part of an Indicated Mineral Resource and, in some circumstances, a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study. This study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of reporting, that economic extraction can be justified.

Proven Mineral Reserve

The term “Proven Mineral Reserve” means the economically mineable part of a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study. This study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of reporting, that economic extraction is justified.

2017 MINERAL RESERVES

The following table sets forth the Mineral Reserve estimates for the Company’s mineral projects as at December 31, 2017. See the qualified persons list below.

Gold

Gold

Proven Mineral Reserves

Probable Mineral Reserves

Total Proven & Probable

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

Alumbrera (12.5%)

9,915

0.40

126

485

0.37

6

10,399

0.39

132

Canadian Malartic (50%)

24,990

0.95

760

65,509

1.15

2,429

90,499

1.10

3,189

Cerro Moro

0

0.00

0

1,954

11.38

715

1,954

11.38

715

Chapada

312,360

0.18

1,788

368,790

0.21

2,500

681,150

0.20

4,287

El Peñón

1,062

5.90

201

3,332

5.25

563

4,394

5.41

764

Gualcamayo

6,570

1.26

267

3,678

1.90

224

10,248

1.49

491

Jacobina

18,161

2.34

1,365

7,681

2.13

527

25,842

2.28

1,892

Jeronimo (57%)

6,350

3.91

798

2,331

3.79

284

8,681

3.88

1,082

Minera Florida Ore

846

3.80

103

2,992

3.65

351

3,838

3.68

454

Minera Florida Tailings

1,248

0.94

38

0

0.00

0

1,248

0.94

38

Total Minera Florida

2,093

2.10

141

2,992

3.65

351

5,086

3.01

492

Total Gold Mineral Reserves

381,501

0.44

5,446

456,751

0.52

7,598

838,252

0.48

13,044

CMC Ontario Gold Projects

Upper Beaver Mineral Reserves (50%)

0

0.00

0

3,996

5.43

698

3,996

5.43

698

Yamana Gold + Brio Gold + CMC Ontario Projects

Total Gold Mineral Reserves

381,501

0.44

5,446

460,747

0.56

8,296

842,248

0.51

13,742

Agua Rica

384,871

0.25

3,080

524,055

0.21

3,479

908,926

0.22

6,559

Silver

Silver

Proven Mineral Reserves

Probable Mineral Reserves

Total Proven & Probable

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

Cerro Moro

0

0.0

0

1,954

648.3

40,723

1,954

648.3

40,723

El Peñón

1,062

192.4

6,567

3,332

158.8

17,011

4,394

166.9

23,578

Minera Florida Ore

846

29.6

804

2,992

22.5

2,165

3,838

24.1

2,970

Minera Florida Tailings

1,248

14.5

584

0

0.0

0

1,248

14.5

584

Total Minera Florida

2,093

20.6

1,388

2,992

22.5

2,165

5,086

21.7

3,553

Total Silver Mineral Reserves

3,155

78.4

7,955

8,278

225.1

59,899

11,433

184.6

67,855

Agua Rica

384,871

3.7

46,176

524,055

3.3

56,070

908,926

3.5

102,246

Copper

Copper

Proven Mineral Reserves

Probable Mineral Reserves

Total Proven & Probable

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Alumbrera (12.5%)

9,915

0.38

82

485

0.30

3

10,399

0.37

85

Chapada

302,492

0.25

1,642

319,327

0.26

1,829

621,819

0.25

3,471

Total Copper Mineral Reserves

312,407

0.25

1,724

319,812

0.26

1,832

632,218

0.26

3,556

CMC Ontario Gold Projects

Upper Beaver Mineral Reserves (50%)

0

0.00

0

3,996

0.25

22

3,996

0.25

22

Yamana Gold + CMC Ontario Projects

Total Copper Mineral Reserves

312,407

0.25

1,724

323,808

0.26

1,854

636,214

0.26

3,578

Agua Rica

384,871

0.56

4,779

524,055

0.43

5,011

908,926

0.49

9,790

Zinc

Zinc

Proven Mineral Reserves

Probable Mineral Reserves

Total Proven & Probable

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Minera Florida Ore

846

1.53

29

2,992

1.05

69

3,838

1.16

98

Minera Florida Tailings

1,248

0.58

16

0

0.00

0

1,248

0.58

16

Total Zinc Mineral Reserves

2,093

0.96

44

2,992

1.05

69

5,086

1.01

114

Molybdenum

Molybdenum

Proven Mineral Reserves

Probable Mineral Reserves

Total Proven & Probable

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Alumbrera (12.5%)

9,915

0.011

2.50

485

0.009

0.09

10,400

0.011

2.60

Total Moly Mineral Reserves

9,915

0.011

2.50

485

0.009

0.09

10,400

0.011

2.60

Agua Rica

384,871

0.033

279

524,055

0.030

350

908,926

0.031

629

Totals may not add due to rounding

Scroll Left to Right for Full Table

2017 MINERAL RESOURCES (Measured, Indicated & Inferred)

Gold

Gold

Measured Mineral Resources

Indicated Mineral Resources

Total Measured & Indicated

Inferred Mineral Resources

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

Alumbrera (12.5%)

3,082

0.39

39

375

0.37

5

3,457

0.39

43

108

0.29

1

Arco Sul

0

0.00

0

0

0.00

0

0

0.00

0

5,000

4.02

646

Canadian Malartic (50%)

2,037

1.33

87

11,086

1.59

566

13,123

1.55

653

35,039

2.05

2,306

Cerro Moro

0

0.00

0

3,321

2.23

238

3,321

2.23

238

4,427

1.96

279

Chapada

54,815

0.12

204

301,538

0.27

2,600

356,353

0.24

2,804

74,599

0.25

609

El Peñón Mine

312

8.56

86

1,116

6.47

232

1,428

6.92

318

2,494

8.31

666

El Peñón Tailings

0

0.00

0

0

0.00

0

0

0.00

0

13,767

0.55

245

El Peñón Low Grade Stock

0

0.00

0

0

0.00

0

0

0.00

0

1,208

1.26

49

El Peñón Total

312

8.56

86

1,116

6.47

232

1,428

6.92

318

17,469

1.71

960

Gualcamayo

10,784

2.00

692

21,949

2.25

1,585

32,733

2.16

2,277

17,920

2.48

1,430

Jacobina

33,494

2.20

2,370

13,554

2.04

889

47,048

2.15

3,258

1,595

2.24

115

Jeronimo (57%)

772

3.77

94

385

3.69

46

1,157

3.74

139

1,118

4.49

161

La Pepa

15,750

0.61

308

133,682

0.57

2,452

149,432

0.57

2,760

37,900

0.50

620

Lavra Velha

0

0.00

0

0

0.00

0

0

0.00

0

3,934

4.29

543

Minera Florida

1,176

6.04

228

3,722

5.05

604

4,897

5.28

832

7,284

5.26

1,231

Monument Bay

0

0.00

0

36,581

1.52

1,787

36,581

1.52

1,787

41,946

1.32

1,781

Suyai

0

0.00

0

4,700

15.00

2,286

4,700

15.00

2,286

900

9.90

274

Total Gold Mineral Resources

122,221

1.05

4,108

532,009

0.78

13,289

654,230

0.83

17,396

249,236

1.37

10,956

CMC Ontario Projects

Amalgamated Kirkland (50%)

0

0.00

0

634

6.51

133

634

6.51

133

1,187

5.32

203

Anoki-McBean (50%)

0

0.00

0

934

5.33

160

934

5.33

160

1,263

4.70

191

Hammond Reef (50%)

82,831

0.70

1,862

21,377

0.57

388

104,208

0.67

2,251

251

0.72

6

Upper Beaver (50%)

0

0.00

0

1,818

3.45

202

1,818

3.45

202

4,344

5.07

708

Upper Canada (50%)

0

0.00

0

0

0.00

0

0

0.00

0

6,049

4.50

876

Total Gold Mineral Resources (50%)

82,831

0.70

1,862

24,763

1.11

882

107,594

0.79

2,745

13,094

4.71

1,984

Yamana Gold + Brio Gold + CMC Ontario Projects

Total Gold Mineral Resources

205,052

0.91

5,970

556,772

0.79

14,171

761,824

0.82

20,142

262,330

1.53

12,940

Agua Rica

27,081

0.14

120

173,917

0.14

776

200,998

0.14

896

642,110

0.12

2,444

Silver

Silver

Measured Mineral Resources

Indicated Mineral Resources

Total Measured & Indicated

Inferred Mineral Resources

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

(000's)

(g/t)

oz. (000's)

Cerro Moro

0

0.0

0

3,321

190.3

20,313

3,321

190.3

20,313

4,427

101.3

14,415

El Peñón Mine

312

191.0

1,914

1,116

224.3

8,048

1,428

217.0

9,962

2,494

302.5

24,263

El Peñón Tailings

0

0.00

0

0

0.00

0

0.00

0.00

0

13,767

18.9

8,380

El Peñón Low Grade Stock

0

0.00

0

0

0.00

0

0.00

0.00

0

1,208

22.2

863

El Peñón Total

312

191.00

1,914

1,116

224.3

8,048

1,428

217.0

9,962

17,469

59.7

33,506

Minera Florida

1,176

41.5

1,570

3,722

28.0

3,347

4,897

31.2

4,916

7,284

28.4

6,661

Suyai

0

0.0

0

4,700

23.0

3,523

4,700

23.0

3,523

900

21.0

575

Total Silver Mineral Resources

1,487

72.9

3,484

12,858

85.2

35,230

14,346

83.9

38,714

30,080

57.0

55,157

Agua Rica

27,081

2.4

2,042

173,917

2.9

16,158

200,998

2.8

18,200

642,110

2.3

48,124

Copper

Copper

Measured Mineral Resources

Indicated Mineral Resources

Total Measured & Indicated

Inferred Mineral Resources

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Alumbrera (12.5%)

3,082

0.40

27

375

0.39

3

3,457

0.40

31

108

0.21

1

Chapada

54,815

0.19

233

219,377

0.22

1,080

274,192

0.22

1,313

47,046

0.24

252

Total Copper Mineral Resources

57,897

0.20

260

219,752

0.22

1,084

277,649

0.22

1,344

47,153

0.24

253

CMC Ontario Projects

Upper Beaver (50%)

0

0.00

0

1,818

0.14

6

1,818

0.14

6

4,344

0.20

19

Yamana Gold + CMC Ontario Projects

Total Copper Mineral Reserves

57,897

0.20

260

221,570

0.22

1,089

279,467

0.22

1,350

51,497

0.24

272

Agua Rica

27,081

0.45

266

173,917

0.38

1,447

200,998

0.39

1,713

642,110

0.34

4,853

Zinc

Zinc

Measured Mineral Resources

Indicated Mineral Resources

Total Measured & Indicated

Inferred Mineral Resources

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Minera Florida

1,176

2.32

60

3,722

1.69

139

4,897

1.84

199

7,284

1.33

214

Total Zinc Mineral Resources

1,176

2.32

60

3,722

1.69

139

4,897

1.84

199

7,284

1.33

214

Molybdenum

Molybdenum

Measured Mineral Resources

Indicated Mineral Resources

Total Measured & Indicated

Inferred Mineral Resources

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Tonnes

Grade

Contained

Yamana Gold Projects

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

(000's)

(%)

lbs (mm)

Alumbrera (12.5%)

3,082

0.014

0.93

375

0.012

0.10

3,457

0.014

1.03

108

0.004

0.01

Total Moly Mineral Resources

3,082

0.014

0.93

375

0.012

0.10

3,457

0.014

1.03

108

0.004

0.01

Agua Rica

27,081

0.049

29

173,917

0.037

142

200,998

0.039

172

642,110

0.034

480

Totals may not add up due to rounding
NOTE: Mineral Resources are exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability.

All Mineral Reserves and Mineral Resources have been calculated in accordance with the standards of the Canadian Institute of Mining, Metallurgy and Petroleum and NI 43-101, other than the estimates for the Alumbrera mine which have been calculated in accordance with the JORC Code which is accepted under NI 43-101.

All Mineral Resources are reported exclusive of Mineral Reserves.

Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability.

Mineral Reserves and Mineral Resources are reported as of December 31, 2017.

For the qualified persons responsible for the Mineral Reserve and Mineral Resource estimates, see the qualified persons chart below.

The scientific and technical information relating to the Chapada mine, El Peñón mine, Gualcamayo mine, Jacobina mining complex and Canadian Malartic mine contained in this website has been derived from, and in some instances is an extract from, or is based on the following technical reports. Copies of the technical reports are available electronically on SEDAR at www.sedar.com.

Chapada mine
— “Technical Report on the Chapada Mine, Brazil” dated July 31, 2014, prepared by or under the supervision of Wayne W. Valliant, P. Geo., and Robert L. Michaud, P. Eng., of Roscoe Postle Associates Inc., who are qualified persons pursuant to National Instrument 43-101.

Canadian Malartic mine
— “Technical Report on the Mineral Resource and Mineral Reserve Estimates for the Canadian Malartic Property” dated August 13, 2014, prepared by or under the supervision of Donald Gervais, P. Geo., Christian Roy, Eng., Alain Thibault, Eng., and Carl Pednault, Eng., of Canadian Malartic General Partnership, and Daniel Doucet, Eng of Agnico Eagle Mines Limited, who are qualified persons pursuant to National Instrument 43-101.

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NON-GAAP INFORMATION

Yamana discloses certain non-GAAP measures including Cash costs per ounce of gold, Cash costs per ounce of silver, Co-product cash costs per ounce of gold, Co-product cash costs per ounce of silver, Co-product cash costs per pound of copper, All-in sustaining costs per ounce of gold, All-in sustaining costs per ounce of silver, All-in sustaining co-product costs per ounce of gold, and All-in sustaining co-product costs per ounce of silver to supplement its Consolidated Financial Statements, which are presented in accordance with IFRS. The term IFRS and generally accepted accounting principles (“GAAP”) are used interchangeably. The Company believes that these measures, together with measures determined in accordance with IFRS, provide investors with an improved ability to evaluate the underlying performance of the Company. Non-GAAP measures do not have any standardized meaning prescribed under IFRS, and therefore they may not be comparable to similar measures employed by other companies. The data is intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS.